Audiovox 1287181 User Manual
Model APS 786T
Installation Manual
4 Channel Remote Car Starter
With Full Feature Alarm System
Installation Instructions
This Unit Is Intended For Installation In Vehicles With
12 Volt Negative Ground Electrical Systems,
Gasoline or Diesel With True Tach Reference
And Automatic Transmissions Only.
Kit Contents:
Remote Start/Alarm Control Module
(2) - Four Button Anti Code Hopping Transmitters
4 Channel Code Learning Receiver
External Superheterodyne Antenna/Receiver
Mini Six Tone Siren
(1) - Multi Pin Input/Output Harness
(1) - Six Pin Power Harness
(1) - Four Pin Auxiliary Output Harness
(1) - T wo Pin LED Indicator
(1) - T wo Pin V alet / Programming Switch
(1) - T wo Pin Control Switch
(1) - Four Pin Shock Sensor Harness
(1) - T wo Pin Door Lock Harness
(1) - Dual Stage Shock Sensor
(1) - Starter Inhibit Relay and Socket
(2) - 30 Amp In-line Fuse Holders With Fuses
(1) - Pin Switch Hardware Bag
(2) - Under Hood Caution Labels
(1) - Installation Manual
(1) - Operator's Manual
(1) - Limited Warranty
(2) - Window Decals
Released: 6-28-04
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The APS-785 Remote Start/Alarm System is designed to be used with Automatic Transmission
Vehicles Only!
glow plug pre-heat which may be required for certain diesel vehicles, (see selectable feature #9)
engine has a instant fire, (no glow plug pre-heat system), feature #9 should remain in the default Gasoline
mode setting. For diesel applications, consult your dealer for the type of ignition system used in your particular vehicle. Regardless of the vehicle, Gasoline or Diesel, for every installation, the vehicle MUST HA VE a
T ach Signal Input, and an Automatic Transmission.
The unit provides a selectable ignition control that allows a number of selectable timed outputs for
. If the diesel
INSTALLATION OF THE MAJOR COMPONENTS:
CONTROL MODULE:
Select a mounting location inside the passenger compartment (up behind the dashboard). The mounting
location selected must be within 24" of the ignition switch wiring harness to allow connection of the 6 pin
main wiring harness.
Be certain that the chosen location will not interfere with proper operation of the vehicle. Avoid mounting the
module to or routing the wiring around the steering shaft/column, as the module or wiring may wrap around
or block the steering wheel preventing proper control of the vehicle. Secure the module in the chosen
location using cable ties or screws as necessary .
Do Not Mount The Module In The Engine Compartment, as it is not waterproof.
SIREN:
Select a location in the engine compartment that is not accessible from below the vehicle. The selected
location must be clear of hot or moving parts within the engine compartment The siren must be pointed
downward to prevent water retention and the flared end must be pointed away from and out of the engine
compartment for maximum sound distribution. Before securing the siren, check behind your chosen location to assure that the mounting screws will not penetrate any factory wiring or fluid lines. Secure the siren
mounting bracket using #8 self taping screws or by first using the mounting bracket as a template, scribe or
mark the mounting holes. Drill the marked holes using a 1/8" drill bit, then mount the siren using #8 sheet
metal screws.
HOOD AND TRUNK PIN SWITCHES:
The pin switches included in this package are intended for protecting the hood and trunk areas of the
vehicle. In all cases, the switch must be mounted to a grounded metal surface. When the pin switch is
activated, (hood/trunk open), it will supply a ground to the input wire activating the alarm. In addition, the
hood switch is required for the safety shut down of the remote start unit. If the vehicle is being worked on,
this hood switch prevents the remote start activation even if the RF command to start is issued. This switch
must be installed in all applications Failure to do so may result in personal injury or property damage. Mount
the switches in the hood and trunk locations away from water drain paths. If necessary, the included
brackets may be used to move the switch away from rain gutters or allow mounting to the firewall behind the
hood seal. In both cases the switch must be set up to allow the hood or trunk door to depress the switch at
least 1/4 inch when the hood or trunk is closed and fully extended when the hood or trunk is opened. For
direct mounting, a 1/4 inch hole must be drilled. Carefully check behind the chosen location to insure the
drill will not penetrate any existing factory wiring or fluid lines. Drill a 1/4" hole in the desired location and
thread the pin switch into it using a 7/16" nut driver or deep well socket. If using the mounting bracket, first
secure the bracket to the desired location and secure the pin switch in the pre-threaded mounting bracket
hole.
DASH MOUNTED LED:
The small Red LED included in the kit will serve as a visual indicator of the alarm's status and provide a
visual deterrent to a potential thief. The LED also provides important feed back information during the
transmitter and feature program modes. The LED should be installed in the dash in an area highly visible
so that it may be seen from the driver's seat as well as from outside the vehicle. Inspect behind the chosen
location to insure that the drill will not penetrate any existing factory wiring or fluid lines. Carefully drill a 1/4"
hole in the desired location and pass the connector end of the LED through the hole and toward the control
module. Press the LED firmly into place until it is fully seated in the mounting hole.
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THE RECEIVER/ANTENNA ASSEMBLY:
The Superheterodyne Receiver Antenna Assembly provided with this unit allows routing from below the
dash board for maximum operating range. Choose a location above the belt line (dashboard) of the vehicle
for best reception. Special considerations must be made for windshield glass as some newer vehicles
utilize a metallic shielded window glass that will inhibit or restrict RF reception. In these vehicles, route the
antenna toward a rear window location for best reception. Secure the antenna with double stick tape
provided. After securing the antenna with tape, we advise also securing a section of the antenna cable to a
fixed support. This will prevent the antenna from dropping down in case the double stick tape is exposed to
extreme heat which may loosen it's gummed surface. Route the 3 pin connector toward the control module
using caution not to pinch the cable as this will cause poor or no RF reception to the control module.
PUSH-BUTTON V ALET/PROGRAM/MANUAL OVERRIDE SWITCH :
Select a mounting location that is easily accessible to the operator of the vehicle. It is not necessary to
conceal the switch. However, concealment is recommended as it offers a higher level of security. The
switch can be mounted to the lower dash panel in the driver's area. Inspect behind the chosen location to
insure that adequate clearance is allowed for the body of the switch, and also that the drill will not penetrate
any existing factory wiring or fluid lines. Drill a 9/32" hole in the desired location and mount the switch by
passing it through the panel from the underside. Secure the switch using the nut and star washer. Route
the switch's connector toward the control module.
NOTE: During the program sequence, there are times when this switch and the ignition switch will be used
simultaneously . We recommend that the push-button switch be mounted on the lef t side of the ignition switch to
facilitate this operation.
CONTROL SWITCH:
Select a mounting location known and accessible to the operator of the vehicle. A lower dash panel, kick
panel, or glove box is desirable. Inspect behind the chosen location to insure that adequate clearance is
allowed for the body of the switch, and also that the drill will not penetrate any existing factory wiring or fluid
lines. Drill a 1/4" hole in the desired location and mount the switch by passing it through the panel from the
underside. Secure the switch using the nut, star washer, and on/off face plate. It is suggested that the
switch be oriented to allow the on position to be up toward the driver and the off position to be down or away
from the driver. Route the switch's connector toward the control module.
SHOCK SENSOR:
Select a centrally located, solid mounting surface for the shock sensor that will allow consistent operation
from all areas of the vehicle. The selected location must be within 18" of the control module to allow routing
and connecting of the 4 pin harness. Secure the shock sensor to the chosen location using two #8 self
taping sheet metal screws. The sensor can also be secured to an existing dash brace using cable tie straps.
Whichever mounting method is used be sure to allow access to the sensitivity adjustment potentiometer for
use later in the installation.
ST ARTER INHIBIT RELAY:
Select a mounting location within 12" of the ignition switch's low current start solenoid wire. Secure the relay
to an existing harness in the chosen location using a cable tie around the relay's wiring harness. Caution!
Do not wire tie the metal bracket to an existing wiring harness as vibration may cause chaffing and shorting
damaging the factory wiring. If an existing harness is not available then secure the relay's metal mounting
tab to an under dash metal brace with a #8 self taping sheet metal screw . Wire the relay as per the diagram
found later in this manual.
The APS-785 is to be used in vehicles with AUTOMATIC TRANSMISSIONS only! Although this combination
Alarm/Remote Start unit is a sophisticated system with many advanced features, IT MUST NOT be installed
into a vehicle with a manually operated transmission. Doing so may result in serious personal injury and
property damage.
IMPORT ANT!
DO NOT PLUG THE SIX PIN MAIN POWER HARNESS OR THE MULTI PIN INPUT / OUTPUT HARNESS
INTO THE CONTROL MODULE UNTIL ALL CONNECTIONS TO THE VEHICLE HAVE BEEN MADE.
AFTER SELECTING YOUR TARGET WIRES AS DEFINED BELOW, DISCONNECT THE NEGATIVE
BATTERY CABLE FROM THE VEHICLE BATTERY PRIOR TO MAKING ANY CONNECTIONS.
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WIRING THE 6 PIN MAIN POWER HARNESS:
RED w/ WHITE Trace Wire: + 12 volts Battery 1 Source
Connect this wire to a + 12 VDC constant source found at the vehicle's ignition switch using the 30 Amp fuse
and holder provided. This wire provides power for the control circuit as well as the ignition 1 and ignition 2
relays.
RED Wire: + 12 V olts Battery 2 Source
Connect this wire to a + 12 VDC constant source found at the vehicle's ignition switch using the 30 Amp fuse
and holder provided, but NOT the same vehicle wire as used by the battery 1 source. Most vehicles have
more than one battery source supplying power to the ignition switch. Separate feed wires must be used for
the Red and Red/White wires. If your vehicle does not have two battery feed wires at the ignition switch then
it is possible to connect both wires to the vehicle's battery . This wire provides power for the st art relay and
the accessory relay .
IMPORT ANT!
It is the responsibility of the installing technician to determine the load factor of the vehicles electrical circuits
when the vehicle is running, and to adequately fuse the two power wires based on that load. If the vehicle,
running under load with the air conditioner, heater blower motor , and accessories exceed 24 Amps continuous, we recommend that two fuses be used in combination on each power wire as shown below. For
additional information see Tech Update issued 9/30/96.
YELLOW Wire: S tarter Output
Careful consideration for the connection of this wire must be made to prevent the vehicle from
starting while in gear . Understanding the difference between a mechanical and an electrical Neutral
Start Switch will allow you to properly identify the circuit and select the correct installation method.
In addition you will realize why the connection of the safety wire is required for all mechanical
switch configurations.
Failure to make this connection properly can result in personal injury and property damage.
In all installations it is the responsibility of the installing technician to test the remote start unit and assure
that the vehicle cannot start via RF control in any gear selection other than park or neutral.
In both mechanical and electrical neutral start switch configurations, the connection of the Yellow wire will
be made to the low current start solenoid wire of the ignition switch harness. This wire will have +12 volts
when the ignition switch is turned to the start (crank) position only. This wire will have 0 volts in all other
ignition switch positions.
NOTE: This wire must be connected to the vehicle side of the starter cut relay (when used). For the
electrical neutral switch configuration, this connection must be made between the starter inhibit relay ,
( when used ) and the neutral safety switch as shown in the following diagram.
Failure to connect this wire to the ignition switch side of the of the neutral safety switch can result in personal
injury and property damage.
SEE NEUTRAL START SAFETY TEST FOR FURTHER DETAILS.
BLUE Wire: Ignition 1 Output
Connect this wire to the ignition 1 wire from the ignition switch. This wire will show +12 volts when the
ignition key is turned to the "ON" or "RUN" and the "START" or CRANK" positions, and will have 0 volts
when the key is turned to the "OFF" and "ACCESSORY" positions.
For Diesel Applications, this wire must be connected to the ignition circuit that powers the glow plugs if the
vehicle requires glow plug pre-heating. (See selectable feature #9)
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YELLOW ST ART WIRE DETAIL
GREEN Wire: Ignition 2 Output
Connect this wire to the ignition 2 wire from the ignition switch. This wire will show + 12 volts when the
ignition key is turned to the "ON" or "RUN" position and is some cases the "START" or CRANK" position.
This wire will show 0 volts when the key is turned to the "OFF" and "ACCESSORY" positions.
NOTE: See programming information concerning this wire to allow output during the "ST AR T" mode.
VIOLET Wire: Accessory Output
Connect this wire to the Accessory wire from the ignition switch. This wire will show + 12 volts when the
ignition switch is turned to the "ACCESSORY" or "ON" and "RUN" positions, and will show 0 volts when the
key is turned to the "OFF" and "ST AR T" or "CRANK" positions.
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WIRING CONNECTIONS: Multi Pin Accessory Input/Output Harness
White w/ Red Trace W ire: Parking Light Flasher Feed
This wire is the common contact of the on board parking light flasher relay. If the vehicle you are
working on has +12 volt switched parking lights, connect this wire to a fused + 12 volt source. (Max. 15
Amps)
NOTE: If the vehicle's parking lights are ground switched, connect this wire to chassis ground.
White Wire: Parking Light Flasher Output
This wire is the normally open contact of the on board parking light flasher relay . Connect this wire to the
vehicle parking light feed wire. See diagram below for details on wiring positive switched parking light
circuits.
Parking Light Wiring Detail
White w/ Black Trace Wire: (+) Siren Output
This is the positive siren feed wire. Route this wire through a grommet in the firewall to the siren
location. Connect the White w/ Black T race wire to the Red wire of the Siren. Secure the Black wire
of the Siren to a known chassis ground or solid clean metal surface.
SIREN
BLACK
Siren Wiring Detail
!!
!
RED
!!
TO WHITE w/BLACK WIRE OF MODULE
(-) TO VEHICLE'S CHASSIS GROUND
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Purple Wire: (+) Door Trigger Input
If the vehicle's door courtesy light switches + 12 volts when the door is opened, (Some Fords and some
Imports), you must connect this wire to the positive output from one of the vehicle's door pin switches.
In most cases, the Purple wire will need to be connected to only one door switch no matter how many
doors the vehicle has as most door lighting circuits are wired in parallel.
Note: For vehicles with interior delay lighting see programming under title "Completing The Installation".
Positive Door Switch Wiring Detail
Dark Green Wire: (-) Instant T rigger Input
This is the instant on ground trigger input wire. This wire must be connected to the hood and trunk pin
switches previously installed.
Note: This wire will be shunted when remote control channel 3 is accessed, (trunk release). This wire
will remain shunted all the while there is ground present and for 5 seconds after the ground is removed.
This allows the operator to open the trunk via the remote transmitter without having to first disarm the
alarm system. See below for wiring detail.
Hood Pin Switch Detail
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Light Blue Wire: Ignition 3 Output
This wire provides a 300mA ground output that becomes active 3 seconds before the Remote Start Unit
initializes, and remains grounded while running plus an additional 4 seconds after the Remote Start Unit
turns off. In all of the applications described below , a relay will be required.
The Light Blue wire can be used to accommodate the following situations:
A. Shock Sensor By Pass:
If there is a Non Plug in Shock Sensor used with the alarm system and it is not shunted during the
Remote Start activation period, then vibration from the running vehicle can cause the alarm to trigger .
In this case, connect the Light Blue Wire to terminal #86 of a external relay . Connect terminal # 85 of
the relay to a fused + 12 volt battery source. Cut the shock sensor trigger wire and connect one end
of the cut wire to terminal #30 and the other end of the cut wire to terminal #87a. Just before the
Remote Start unit is activated, the relay contacts will open, preventing the shock sensor's operation
until the Remote Start unit shuts off.
B. Ignition 3 Output:
Some newer vehicles use a third ignition wire which is required to start and keep the vehicle's engine
running. If this is the case, connect the Light Blue wire to terminal #86 of an external relay . Connect
terminal # 30 & # 85 to a fused + 12 volt battery source rated for a minimum of 25 Amp. Connect
terminal # 87 to the third ignition wire in the vehicle.
C. GM V ATS Key Override:
If the vehicle has the General Motors VATS system installed, you will need to by-pass the system
while the vehicle is operating under the control of the Remote St art Unit. To Do This;
1. Measure the resistance of the resistor pellet on the ignition key then select a resistor within 5% of
the key's value from the resistor pack supplied.
2. Locate the pair of VATS wires in the vehicle, usually a pair of thin gauge wires running from the
ignition switch to the V ATS control module.
NOTE: These wires are typically White w/ Black trace and Violet w/ Yellow trace, however in later model
Cadillacs, they are run through an orange sleeve, and are either both Black, both Yellow , or both White
wires. Consult the factory service manual for additional information.
3. Connect the Light Blue Wire from the Remote Start Unit to terminal #86 of an external relay.
Connect terminal #85 of the relay to a fused + 12 volt battery source.
4. Cut (#1) wire (as shown), and connect the ignition switch side of the cut wire to terminal #87a of the
relay. Connect the other side of the (#1) wire to terminal #30.
5. Connect the previously selected resistor from terminal #87 to the second (#2) wire (as shown).
NOTE: The above information and following diagram is for the GM VATS system only. For GM PASS
LOCK System you will require the Audiovox AS-PASS II Module.
General Motors VATS By-Pass Diagram
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